April 01, 1899

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Features

Admiral Colomb on the Spanish War

New York Truant School

A Gross Violation of Principle

The Great Central Railway of England

Geographical Names as Legitimate Trade Marks

Testing Acetylene Generators

Insect Migrations

By C. F. Holder

Trick Wood Joining

The Multiphone

A Machine for Filtering Liquids

A Simple Pipe-Hanger

An Improvement in Smoke-Consumers

The Improved Turrets of the Battleship "Texas"

By Robert W. Henderson

Quadruple Compound Harmonic Motion

By M. J. Hoferer

The Late Prof. O. C. Marsh

Telephotography

To Inventors - April 1, 1899

Departments

Letters

Correspondence - April 1, 1899

Recommended

New Books, Etc. - April 1, 1899

Departments

Recently Patented Inventions - April 1, 1899

Business and Personal - April 1, 1899

Notes and Queries - April 1, 1899

Index of Inventions - April 1, 1899

Patents - April 1, 1899

Purchase To Read More

Digital Issue ?Read or download this issue’s articles online. *A printed copy of this issue is not included. $7.99

Print + Digital All Access Subscription ?Read or download this issue’s articles online. Plus, subscribe to get Print, Online and Tablet access to the next 12 new issues to be released as well as Online access to archives back to 1845. $99.00

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